str71xf is an arm7tdmi 32-bit mcu with flash, usb, can 5 timers, adc, 10 communication interfaces
The STR71xF family is a series of 32‑bit ARM7TDMI microcontrollers with integrated Flash, RAM, and a rich set of peripherals. Devices are offered in 144‑pin (full feature set) and 64‑pin (reduced feature set) packages, supporting interfaces such as CAN, USB, UART, I²C, BSPI, HDLC, and an ADC.
Key features include up to 256 KB of program Flash, 16 KB of data Flash, up to 64 KB of RAM, five timers (including a 16‑bit watchdog), 48 configurable I/O ports, and flexible power‑management modes. The datasheet details electrical characteristics, package options, and ordering information for each device variant.
| CPU Core | ARM7TDMI 32‑bit RISC |
|---|---|
| Data Flash Memory | 16 KB |
| RAM | Up to 64 KB |
| Timers | 5 (including 16‑bit watchdog) |
| ADC | 12‑bit, 0‑2.5 V, up to 1 kHz sampling |
| Supply Voltage | 3.0 V to 3.6 V |
| Package Options | LFBGA144, CFBGA64 |
The full‑speed USB interface complies with USB 2.0 and provides up to 12 Mb/s.
The device offers 48 programmable I/O ports.
The program flash (Bank 0) endures 10 K write/erase cycles, while the data flash (Bank 1) endures 100 K cycles.
The STR71xF can operate in SLOW, WAIT, LPWAIT (low‑power wait), STOP, or STANDBY modes.